The Studio Contour Method: How Sumana Kumar Structures a Residential Project

Most people who call us have already been through two or three conversations that went nowhere, and the pattern is almost always the same, because they were shown a pretty elevation before anyone asked what the plot actually allows, and then the drawing had to be pulled apart later when the sanction stage caught up with it. If you own a plot in New Town, Salt Lake or Rajarhat and you are trying to work out how to pick an architect in Kolkata without gambling a few years and a fairly large chunk of your savings on it, the useful question is not "whose designs do I like", it is "what order does this firm do things in", because the order is what protects you.

So this piece lays out the method our studio actually runs, start to finish, on a residential project. Studio Contour has been practising out of New Town since 2014 and we have delivered 330+ buildings across New Town, Salt Lake, Rajarhat and greater Kolkata, and over that stretch the sequence has settled into something fairly rigid, not because we like process for its own sake but because every step that gets skipped early shows up again later as a cost, a delay, or a room that never quite works.

Sumana Kumar, our principal architect, takes residential and commercial projects through the NKDA, KMC and Bidhannagar Municipal Corporation building-plan sanction routes as a routine part of practice, and that working familiarity is the thing that shapes the order of the steps below. When you have watched the same sanction desk raise the same category of query enough times, you stop designing first and checking later, and you start letting the plot's real envelope drive the first sketch.

Step one is the plot, not the plan

Before we draw a single wall we sit with the deed, the plot dimensions, the road width in front, the orientation, and the neighbouring built condition, and we work out what the site can legally and sensibly carry. That means the permissible floor area ratio, the ground coverage, the required setback on each side, the height ceiling that the abutting road width imposes, and the parking that has to be accommodated inside the plot rather than wished onto the street. Our detailed breakdown of FAR and ground coverage rules in New Town covers the arithmetic, but the point here is about sequence, right, because this envelope is the brief's real boundary and everything else negotiates inside it.

The catch here is that most owners arrive with a number in their head that came from a neighbour's house or from a broker, and the number is frequently wrong for their specific plot, because road width differs, corner plots behave differently, and a plot that looks identical from the street may sit under a different height limit. We would rather deliver that news in week one, on paper, than let it surface after you have emotionally committed to a four-bedroom duplex that the envelope will not carry. A plot owner who knows their true buildable area on day one makes better decisions for the next two years.

Step two is the brief, done properly and written down

Once we know the envelope we sit with the family and get specific, and specific means how many people live here today, how many in ten years, whether parents move in later, whether anyone works from home, how you actually cook, whether the kitchen is a service space or a social one, how many cars, how much storage, and what your realistic build budget is including finishes rather than only structure. We write it down and we get it signed off, because an unwritten brief drifts, and drift is what turns a clean residential architecture project into a slow argument about scope.

Budget belongs in this conversation and not later. Our guide to the cost to build a house in New Town walks through the line items, and separately we have written openly about architect fees in Kolkata so you can see how professional fees actually sit against total project cost. Basically, if a firm will not discuss money at brief stage, the number is going to arrive later anyway and it will arrive as a surprise.

Step three is the massing, and this is where a Kolkata house is won or lost

Kolkata's climate is not gentle, so the massing stage is where we decide how the house will behave in May and how it will behave in August. We look at where the south and west faces fall, where you want deep shade, where the cross-flow of air can be set up through the plan so that natural ventilation does real work rather than decorative work, where the light wells or courts sit, and how the roof and terrace are used. A house that is designed to move air through itself costs less to run for its whole life, and that is a design decision made in the third week, not a gadget bought in the third year.

This is also the stage where we test two or three genuinely different options rather than one option with three colour schemes. We show them as massing and plan first, and where a client needs to see it properly before committing, we take the preferred option into 3D visualisation and rendering so the family is deciding on something they can actually read, because most people cannot hold a plan in their head and there is no reason they should have to.

Step four is the sanction set, prepared as its own discipline

A design drawing and a sanction drawing are not the same document, and treating them as the same is the single most common reason a plan comes back with queries. The sanction set has to speak the language of the sanctioning authority, with the coverage and FAR statement tallying, the setbacks dimensioned, the parking shown to norm, the heights consistent across every sheet, and the ownership and title documents matching what is drawn. Our walkthrough of the NKDA building plan sanction process in New Town sets out the stages, and we have also written about what architects actually handle during NKDA plan approval so you know what should be sitting on our side of the table and not yours.

Sumana's view on this is straightforward, which is that the sanction set should be prepared as though a stranger has to read it without asking you a single question, because effectively that is what happens. Where a query does come back, it gets answered on drawing and on record rather than on a phone call, and the file stays coherent. Owners underestimate how much calm this buys them later, at completion and occupancy stage, when a clean and internally consistent file is the difference between a smooth closure and a long one.

Step five is working drawings, which is where quality is actually decided

After sanction, the project moves into the set that the site will build from, and this is the least glamorous and most consequential stage of the whole method. Structural coordination, slab and beam layouts, plumbing routes, drainage falls, electrical points, waterproofing details at terraces and toilets, joinery dimensions, tile and skirting setting-out. Contractors are not mind readers, and every dimension you do not give them is a dimension somebody improvises at eleven in the morning with the mason waiting. Our project record across New Town and Salt Lake, including work like the DE Block residence in New Town, sits on this stage more than on any other.

At the end of the day, a house that leaks in its second monsoon almost never leaks because of a bad idea, it leaks because a junction detail was left to site judgement. So we would rather spend three extra weeks on drawings than three extra years on complaints.

Step six is interiors treated as one continuous project, not a second one

The gap most owners fall into is hiring an architect for the shell and then hiring somebody else for the inside eighteen months later, at which point the switchboards are in the wrong place, the false ceiling has nowhere to hide the ducting, and the kitchen plumbing is two feet from where the kitchen wants to be. We run residential interior design as a continuation of the same drawing set, so that the electrical layout already knows where the bed is going, and the slab level already knows what the flooring build-up will be.

This is a practical argument rather than a sales one, and if you want to think it through independently, our locality view of building and living in New Town covers how plot sizes and typologies there shape what is worth doing inside. Either way, decide the interior direction before the shell is cast, not after.

What this means for you when you are choosing

If you are interviewing architects in New Town, Salt Lake or greater Kolkata right now, ask each firm to describe their sequence, and listen for whether the envelope study comes before the design or after it, whether the sanction set is treated as its own discipline, whether working drawings are included or quietly excluded, and whether interiors are coordinated or handed off. Ask how many buildings they have taken through to completion in your specific area, because familiarity with a particular sanctioning process is earned by repetition and not claimed on a website. A firm that answers those four questions crisply is a firm that has done this often enough to have a method.

That is really all our method is, a set of steps arranged so that the expensive discoveries happen early and cheaply, on paper, while they are still just decisions. If you have a plot in New Town, Salt Lake or Rajarhat and you want to know what it can carry before you fall in love with a drawing, get in touch with the studio with your plot dimensions and road width, and we will start where we always start, which is with the site.